JP2012248195A - Touch window - Google Patents

Touch window Download PDF

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JP2012248195A
JP2012248195A JP2012119771A JP2012119771A JP2012248195A JP 2012248195 A JP2012248195 A JP 2012248195A JP 2012119771 A JP2012119771 A JP 2012119771A JP 2012119771 A JP2012119771 A JP 2012119771A JP 2012248195 A JP2012248195 A JP 2012248195A
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sensing electrode
pattern
electrode pattern
touch window
wiring
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JP5513552B2 (en
Inventor
Dong-Kyong Lim
ドン キョン リム
Young Jin Lee
ヨン ジン イ
Yong-Jin No
ヨン ジン ノ
Bong-Jung Park
ボン ジュン パク
Jin-Bok Chang
ジン ボク チャン
Dong Min Kim
ドン ミン キム
Cahng Gen Li
チャン ケン イ
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LG Innotek Co Ltd
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LG Innotek Co Ltd
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416Control or interface arrangements specially adapted for digitisers
    • G06F3/04164Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0445Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0448Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00Printed circuits
    • H05K1/02Details
    • H05K1/03Use of materials for the substrate
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04103Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Position Input By Displaying (AREA)
  • Structure Of Printed Boards (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a structure of a touch window for preventing increase in line width of a first printing part and improving printing quality by designing and inserting a dummy pattern to be printed before printing of a wiring pattern.SOLUTION: The present invention relates to a technology for improving printability of a wiring pattern and a structure of a touch window to be manufactured by the technology. Especially, the touch window includes: a sensing electrode pattern layer including a patterned sensing electrode to be formed on a transparent window, and a wiring part to be connected to the sensing electrode, and further includes a dummy circuit pattern to be separated from the wiring part.

Description

本発明は、配線パターンの印刷品質を向上させる技術及びこれにより製造されるタッチウィンドウの構造に関するものである。   The present invention relates to a technique for improving the print quality of a wiring pattern and a structure of a touch window manufactured thereby.

タッチウィンドウは陰極線管(CRT:Cathode Ray Tube)、液晶表示装置(LCD:Liquid Crystal Display)、電界放出表示装置(FED:Field Emission Display)、プラズマディスプレイパネル(PDP:Plasma Display Panel)及び電界発光素子(ELD:Electro Luminescence Device)等のような画像表示装置の表示面に設けられ、ユーザが画像表示装置を見ながらタッチウィンドウ(パネル)を加圧してコンピュータに予め定められた情報を入力する装置である。   The touch window includes a cathode ray tube (CRT), a liquid crystal display (LCD), a field emission display (FED), a plasma display panel (PDP), and an electric field display panel. (ELD: Electro Luminescence Device) and the like provided on the display surface of an image display device, and the user presses a touch window (panel) while viewing the image display device and inputs predetermined information to a computer. is there.

図1は、このような多層の構造のタッチウィンドウの接着構造の平面図を示すものである。図1を参照すると、タッチパネルは、透明ウィンドウの下部の上部OCA(高透明性接着剤転写テープ:Optical Clear Adhesive tape)、その下部の上部電極(ITO)、下部OCA、及び下部電極の積層構造を有するのが一般的である。このような構造のタッチパネルにおいては、上部電極40の一方のパターンには一つの配線41が連結され、その下に配置される上部電極にも他方の配線42がそれぞれ割り当てられて連結される。また、下部電極20に一つの配線21が連結される。このような各配線部の末端に連結パッドPが形成される。   FIG. 1 shows a plan view of the adhesive structure of such a multi-layered touch window. Referring to FIG. 1, the touch panel has a laminated structure of an upper OCA (Optical Clear Adhesive Tape), a lower upper electrode (ITO), a lower OCA, and a lower electrode, below the transparent window. It is common to have. In the touch panel having such a structure, one wiring 41 is connected to one pattern of the upper electrode 40, and the other wiring 42 is also assigned to and connected to the upper electrode arranged therebelow. One wiring 21 is connected to the lower electrode 20. A connection pad P is formed at the end of each wiring part.

図2は、このような配線部の一例を示すもので、(a)は感知電極に連結されて下部にルーティングされる配線(第1の配線)であり、(b)はこの第1の配線の方向を90度変える配線(第2の配線)で通常配線部が構成され、第2の配線部の末端に連結パッドPが形成される。この配線部は図3に示すように、印刷方式で具現化することができ、この印刷方式で配線部を形成する場合、印刷の進行方向Xにおいて最初に印刷される配線部分(最外殻部分:a1〜a3)ではパターンロールからインクが移されたブランケットがステージに進行する印刷過程で印刷配線の線幅が増加するといった不良が頻繁に発生する。すなわち、パターンロールが最初に印刷面と摩擦することにより発生する摩擦力と、これによる微細な印刷時間のずれにより最初の配線線幅の印刷不良が発生し、このような線幅の増加はショート不良につながるか、全体の配線パターンの印刷品質の水準が低下するという問題につながる。   FIG. 2 shows an example of such a wiring portion. (A) is a wiring (first wiring) connected to the sensing electrode and routed to the lower part, and (b) is the first wiring. The normal wiring portion is formed by the wiring (second wiring) that changes the direction of 90 degrees, and the connection pad P is formed at the end of the second wiring portion. As shown in FIG. 3, this wiring portion can be embodied by a printing method. When the wiring portion is formed by this printing method, the wiring portion (outermost shell portion) printed first in the printing traveling direction X : In a1 to a3), defects such as an increase in the line width of the printed wiring frequently occur during the printing process in which the blanket having the ink transferred from the pattern roll proceeds to the stage. In other words, the printing force of the first wiring line width occurs due to the frictional force generated when the pattern roll first rubs against the printing surface and the fine deviation of the printing time, and this increase in the line width is short. This leads to defects or a problem that the level of print quality of the entire wiring pattern is lowered.

本発明は、かかる問題を解決するために案出されたもので、本発明の目的は、配線パターンの印刷前に印刷されるダミーパターンを設計して挿入することにより、最初の印刷部分の線幅増加を防止するとともに、印刷品質を向上させることができるタッチウィンドウの構造を提供することにある。   The present invention has been devised to solve such a problem, and the object of the present invention is to design and insert a dummy pattern to be printed before printing a wiring pattern, so that the line of the first printed portion is printed. An object of the present invention is to provide a touch window structure capable of preventing an increase in width and improving print quality.

かかる課題を解決するための手段として、本発明は、透明ウィンドウ上に形成されるパターン化された感知電極を含む感知電極パターン層と、感知電極と連結される配線部と、を含み、配線部と離隔するダミー回路パターンを更に含むタッチウィンドウを提供する。   As a means for solving such a problem, the present invention includes a sensing electrode pattern layer including a patterned sensing electrode formed on a transparent window, and a wiring part connected to the sensing electrode, and the wiring part. A touch window further including a dummy circuit pattern spaced apart from the touch panel is provided.

本発明によれば、タッチウィンドウの感知電極に連結される配線パターンの外殻にダミーパターンを設けて配線部の最外殻の最初の行の印刷不良による線幅増加と、これによるショート不良とを一挙に解消し、印刷品質を向上させることができるという効果を奏する。   According to the present invention, a dummy pattern is provided in the outer shell of the wiring pattern connected to the sensing electrode of the touch window, and the line width is increased due to a printing failure in the first row of the outermost shell of the wiring portion, and thereby a short-circuit failure is caused. Can be eliminated at once and the print quality can be improved.

従来のタッチウィンドウの内部構造を示す概念図である。It is a conceptual diagram which shows the internal structure of the conventional touch window. 従来のタッチウィンドウの配線部の構造を示す要部概念図である。It is a principal part conceptual diagram which shows the structure of the wiring part of the conventional touch window. 従来のタッチウィンドウの配線部の構造を示す要部概念図である。It is a principal part conceptual diagram which shows the structure of the wiring part of the conventional touch window. 本発明に係るダミー回路パターンの構造を示す要部概念図である。It is a principal part conceptual diagram which shows the structure of the dummy circuit pattern based on this invention. 本発明に係るダミー回路パターンの構造を示す要部概念図である。It is a principal part conceptual diagram which shows the structure of the dummy circuit pattern based on this invention. 本発明に係るタッチウィンドウの構造を示す断面概念図である。1 is a conceptual cross-sectional view illustrating a structure of a touch window according to the present invention. 本発明に係るタッチウィンドウの構造を示す断面概念図である。1 is a conceptual cross-sectional view illustrating a structure of a touch window according to the present invention. 本発明に係るタッチウィンドウの構造を示す断面概念図である。1 is a conceptual cross-sectional view illustrating a structure of a touch window according to the present invention. 本発明に係る感知電極パターン層の構造を示すものである。2 shows a structure of a sensing electrode pattern layer according to the present invention. 本発明に係る感知電極パターン層の構造を示すものである。2 shows a structure of a sensing electrode pattern layer according to the present invention.

以下、添付図面を参照して、本発明に係る構成及び作用について具体的に説明する。添付図面を参照して説明するにあたり、図面番号に関わらず、同じ構成要素には同じ参照番号を付与し、これについての重複説明は省略する。第1、第2などの用語は、種々の構成要素を説明するために用いられるが、構成要素はそれらの用語により限定されるものではない。用語は一つの構成要素を他の構成要素と区別することのみを目的として使用される。   Hereinafter, with reference to an accompanying drawing, the composition and operation concerning the present invention are explained concretely. In the description with reference to the accompanying drawings, the same reference numerals are given to the same components regardless of the drawing numbers, and the duplicate description thereof will be omitted. The terms such as “first” and “second” are used to describe various components, but the components are not limited by these terms. The terminology is used only for the purpose of distinguishing one component from another.

図4は、本発明の特徴的な要部を示す要部概念図である。
図4を参照すると、本発明に係るタッチウィンドウは、透明ウィンドウ上に形成されるパターン化された感知電極を含む感知電極パターン層と、感知電極と連結される配線部とを含んでなり、特に、配線部と離隔するダミー回路パターンD1、D2、D3を具備してなる点を特徴としている。
FIG. 4 is a main part conceptual diagram showing a characteristic main part of the present invention.
Referring to FIG. 4, the touch window according to the present invention includes a sensing electrode pattern layer including a patterned sensing electrode formed on a transparent window, and a wiring part connected to the sensing electrode, in particular. The semiconductor device is characterized by comprising dummy circuit patterns D1, D2, and D3 spaced apart from the wiring portion.

具体的には、本発明に係るダミー回路パターンD1、D2、D3は図示した通り、配線部を印刷するパターンロールの進行方向Xに最も近い最初の印刷パターンa1,a2,a3に隣接して離隔した位置に配置されることが好ましい。すなわち、印刷方向に配置された最初の印刷パターンは通常、最外殻配線部に該当する。このようなダミー回路パターンD1、D2、D3の存在は配線パターンの印刷時に発生する最初の印刷配線の線幅増加による不良問題を解消し、より鮮明で信頼性のある微細配線を印刷することができるという機能を果たす。   Specifically, the dummy circuit patterns D1, D2, and D3 according to the present invention are spaced adjacent to the first print patterns a1, a2, and a3 that are closest to the traveling direction X of the pattern roll that prints the wiring portion, as illustrated. It is preferable to arrange in the position. That is, the first print pattern arranged in the printing direction usually corresponds to the outermost shell wiring portion. The presence of such dummy circuit patterns D1, D2, and D3 eliminates the defect problem due to the increase in the line width of the first printed wiring that occurs when the wiring pattern is printed, and enables printing of finer and more reliable fine wiring. It fulfills the function of being able to.

また、図4に示すように、ダミー回路パターンD1、D2、D3は少なくとも2つ以上の個数で配置することができ、好ましくは図2において第2の配線の長手方向に沿って形成され、さらに連結パッドPと連結パッドPとの間の第2の配線の折曲部近傍に形成することができる。   Further, as shown in FIG. 4, the dummy circuit patterns D1, D2, and D3 can be arranged in at least two or more, preferably formed along the longitudinal direction of the second wiring in FIG. It can be formed near the bent portion of the second wiring between the connection pad P and the connection pad P.

すなわち、図2及び図5を参照すると、図2において、第2の配線部と連結パッドPを形成する折曲形状の配線との間の空間にダミー回路パターンD1、D2、D3を形成することも可能である。これは特に折曲形状の配線パターンの場合、印刷不良が多く発生し、線幅増加が目立つからである。   That is, referring to FIGS. 2 and 5, in FIG. 2, dummy circuit patterns D1, D2, and D3 are formed in a space between the second wiring portion and the bent wiring forming the connection pad P. Is also possible. This is because, in particular, in the case of a bent wiring pattern, many printing defects occur and the increase in line width is conspicuous.

また、本発明に係るダミー回路パターンは、配線部の最外殻や連結パッドが形成される折曲部近傍に配置することができるが、それぞれの配線と配線との間(内側配線部)、すなわち最外殻配線部の内側の多数の配線部の間に第2のダミー回路パターンを設けることもできる。   Further, the dummy circuit pattern according to the present invention can be disposed in the vicinity of the bent portion where the outermost shell and the connection pad of the wiring portion are formed, but between each wiring (inner wiring portion), That is, the second dummy circuit pattern can be provided between a large number of wiring portions inside the outermost shell wiring portion.

このようなダミー回路パターンを設けることにより、上述のように、配線部の印刷品質を向上させることができるという効果が得られる。   By providing such a dummy circuit pattern, as described above, it is possible to improve the print quality of the wiring portion.

また、本発明に係るダミー回路パターンの構成材料に、上述した配線部の構成材料と同一の材料を用いることができ、特に導電性材料を用いることができる。これは導電性材料ではない材料を用いることも絶縁性のためには効率的であるが、印刷品質向上のために配線部と同じ材料を用いることが好ましいからである。   Further, as the constituent material of the dummy circuit pattern according to the present invention, the same material as the constituent material of the wiring portion described above can be used, and in particular, a conductive material can be used. This is because the use of a material that is not a conductive material is efficient for insulation, but it is preferable to use the same material as the wiring portion in order to improve print quality.

上述した本発明に係るダミー回路パターンが具現化されるタッチウィンドウは、次のような構造に適用することができる。   The touch window in which the above-described dummy circuit pattern according to the present invention is embodied can be applied to the following structure.

図6に示すように、本発明に係るタッチウィンドウは、透明ウィンドウ上に形成されるパターン化された感知電極を含む感知電極パターン層と、感知電極と連結される配線部と、を含み、配線部と離隔するダミー回路パターンを備える構造で具現化することができる。ベース基板130、110と、該ベース基板の一方の面又は該一方の面に対向する他方の面にパターン化される感知電極132、112と、を含む構造で形成される。すなわち、透明ウィンドウ100に第1の接着材料層140を介して接着され、一方の面に感知電極パターン132が形成される第1の感知電極パターン層と、第1の感知電極パターン層の他方の面に第2の接着材料層120を介して接着され、感知電極パターン112が形成される第2の感知電極パターン層と、を含んでなる。   As shown in FIG. 6, the touch window according to the present invention includes a sensing electrode pattern layer including a patterned sensing electrode formed on a transparent window, and a wiring part connected to the sensing electrode. And a dummy circuit pattern that is spaced apart from the portion. The base substrate is formed in a structure including the base substrates 130 and 110 and the sensing electrodes 132 and 112 patterned on one surface of the base substrate or the other surface opposite to the one surface. That is, the first sensing electrode pattern layer bonded to the transparent window 100 via the first adhesive material layer 140 and having the sensing electrode pattern 132 formed on one surface thereof, and the other of the first sensing electrode pattern layers. A second sensing electrode pattern layer that is adhered to the surface via the second adhesive material layer 120 and on which the sensing electrode pattern 112 is formed.

さらには、図6に示す構造とは異なり、図7の構造のように、ベース基板230の両面に感知電極232パターンが形成されるように具現化することも可能である。すなわち、両面ITO基板を通じて両面に感知電極を形成する点で図6と差異があり、それ以外の構成は同一である。また、ベース基板230の下面の感知電極パターンを保護するための保護フィルム210を更に含んでいる。   Further, unlike the structure shown in FIG. 6, the sensing electrode 232 pattern may be formed on both surfaces of the base substrate 230 as in the structure of FIG. 7. That is, there is a difference from FIG. 6 in that sensing electrodes are formed on both sides through a double-sided ITO substrate, and the other configurations are the same. Further, a protective film 210 for protecting the sensing electrode pattern on the lower surface of the base substrate 230 is further included.

図6及び図7のようにベース基板と同一平面上に感知電極パターン層を形成する構成とは異なり、透明ウィンドウ300が形成され、ベース基板310の断面に感知電極パターン312がパターニングされ、配線部311が感知電極パターンと同時に形成される。同一平面上に第1及び第2の感知電極パターンが設けられる。一つの面に接点の第1の軸(例えば、X軸)成分を決定するための第1の感知電極層をパターニングし、接点の第2の軸(例えば、Y軸)成分を決定するための第2の感知電極層は第1の感知電極層と絶縁されるように配置されてパターニングすることが好ましい。さらに、このベース基板310を設けずに、透明ウィンドウ300の一つの面に直接、感知電極パターンを蒸着、コーティングする工程を通じて形成することも可能である。   Unlike the configuration in which the sensing electrode pattern layer is formed on the same plane as the base substrate as shown in FIGS. 6 and 7, the transparent window 300 is formed, and the sensing electrode pattern 312 is patterned on the cross section of the base substrate 310. 311 is formed simultaneously with the sensing electrode pattern. First and second sensing electrode patterns are provided on the same plane. Patterning a first sensing electrode layer for determining a first axis (eg, X-axis) component of a contact on one surface and determining a second axis (eg, Y-axis) component of the contact The second sensing electrode layer is preferably disposed and patterned so as to be insulated from the first sensing electrode layer. Further, it is also possible to form the sensing electrode pattern directly on one surface of the transparent window 300 through a process of depositing and coating without providing the base substrate 310.

上述した様々な構造のタッチウィンドウの構造において、本発明の特徴的な要旨であるダミー回路パターンにより配線部の印刷品質を向上させることに加え、配線部と連結される感知電極自体のパターンを多様な構造に変形させる実施例も可能である。   In the touch window structure having various structures described above, in addition to improving the print quality of the wiring part by the dummy circuit pattern which is a characteristic gist of the present invention, various patterns of the sensing electrode itself connected to the wiring part are used. An embodiment in which the structure is modified is also possible.

例えば、図6〜図8の構造から形成される感知電極のパターンを図9のように具現化することができる。   For example, the pattern of the sensing electrode formed from the structure of FIGS. 6 to 8 can be implemented as shown in FIG.

図6〜図8のタッチウィンドウの構造において、離隔するように配置される第1及び第2の感知電極パターンがオーバーラップするように具現化される場合、特にいずれか一つの感知電極パターンを屈曲パターンで具現化することができる。   6 to 8, when the first and second sensing electrode patterns arranged to be spaced apart from each other are embodied to overlap, in particular, any one sensing electrode pattern is bent. It can be embodied in a pattern.

すなわち、本実施例における感知電極パターン層は2つの感知電極パターン層が互いに離隔して対向配置するとともに、配置されるパターンの形状が互いにオーバーラップし、そのうちいずれか一つが一定の周期で屈曲していることが好ましい。   That is, in the present embodiment, the sensing electrode pattern layer has two sensing electrode pattern layers spaced apart from each other, and the arranged pattern shapes overlap each other, one of which is bent at a constant period. It is preferable.

すなわち、図9に示すように、第1の感知電極パターンTx1が一定の周期を有する屈曲パターンを有し、離隔して形成される第2の感知電極パターンRx1は直線状に形成されるように具現化することができる。例えば、図6の構造において第1の感知電極パターン132と第2の感知電極パターン112のそれぞれは互いに異なるベース基板130、110に形成されて離隔するが、上部から見る平面図上では第1の感知電極パターン132は屈曲パターンを形成する構造であり、第2の感知電極パターン112は直線状に形成され、互いにオーバーラップする領域(図9のQ2)が矩形又は正四角形ではない形態で、一般的な直線状パターンにおける交差部の構造よりも広く形成されるようにする。   That is, as shown in FIG. 9, the first sensing electrode pattern Tx1 has a bent pattern having a constant period, and the second sensing electrode pattern Rx1 formed separately is formed in a linear shape. Can be embodied. For example, in the structure of FIG. 6, the first sensing electrode pattern 132 and the second sensing electrode pattern 112 are formed on different base substrates 130 and 110 and separated from each other. The sensing electrode pattern 132 has a structure in which a bent pattern is formed, the second sensing electrode pattern 112 is formed in a straight line, and the overlapping area (Q2 in FIG. 9) is not a rectangle or a regular square. It is made to be formed wider than the structure of the intersection in a typical linear pattern.

この場合、屈曲パターンとは、一定の周期を有し、山と谷の形状を有する直線状でないパターンをすべて含むものと定義される。特に好ましくは、図9に示すように、山と谷S1、S2、S3が周期的に繰り返されるサイン型の屈曲パターンや、コサイン型屈曲パターンを有し、この構造の他にジグザグ型の直線の屈曲が周期的に繰り返される構造で形成することもできる。図9のA及びB線分は各屈曲パターンの山と谷の頂点を通る仮想の線分である。   In this case, the bending pattern is defined as including all non-linear patterns having a constant period and having a shape of peaks and valleys. Particularly preferably, as shown in FIG. 9, there is a sine-shaped bending pattern in which peaks and valleys S1, S2, and S3 are periodically repeated, and a cosine-shaped bending pattern. It can also be formed with a structure in which bending is repeated periodically. The A and B line segments in FIG. 9 are virtual line segments passing through the peaks and valleys of each bent pattern.

特に、周期性を有する屈曲パターンは、第n屈曲部(nは1以上の自然数)と第n+1屈曲部との間に直線状感知電極パターンが配置される構造で形成されることが好ましい。すなわち、図9に示された構造を参照すると、第1の感知電極パターンTx1の第1の屈曲部S1と第2の屈曲部S2との間に直線形の第2の感知電極パターンRx1が配置されることが好ましい。もちろん、本実施例では第1の感知電極パターンが屈曲パターンである場合を一例として説明したが、これとは逆に、第1の感知電極パターンが直線パターンであり、第2の感知電極パターンが屈曲パターンで具現化することも可能である。また、第1の感知電極パターンTx1と第2の感知電極パターンRx1とがオーバーラップする角度θ1、θ2は直角でなく鋭角又は鈍角で形成することができる。また、特に好ましくは、本発明に係る屈曲パターンがサイン型やコサイン型の周期を有する場合、第2の感知電極パターンは第1の屈曲部と第2の屈曲部の1/2支点、すなわち変曲点を通り交差するようにすることがより好ましい。このような配置構造は交差領域Q2を極大化してタッチセンシング効率を向上させることはもちろん、光学特性を従来の直交構造の配置より透明に形成して視認性を向上させることができるという効果を奏する。   In particular, the bent pattern having periodicity is preferably formed in a structure in which a linear sensing electrode pattern is disposed between the nth bent portion (n is a natural number of 1 or more) and the (n + 1) th bent portion. That is, referring to the structure shown in FIG. 9, a linear second sensing electrode pattern Rx1 is disposed between the first bent portion S1 and the second bent portion S2 of the first sensing electrode pattern Tx1. It is preferred that Of course, in the present embodiment, the case where the first sensing electrode pattern is a bent pattern has been described as an example. On the contrary, the first sensing electrode pattern is a linear pattern and the second sensing electrode pattern is a second pattern. It can also be embodied in a bent pattern. In addition, the angles θ1 and θ2 at which the first sensing electrode pattern Tx1 and the second sensing electrode pattern Rx1 overlap can be formed with an acute angle or an obtuse angle instead of a right angle. Particularly preferably, when the bending pattern according to the present invention has a sine type or cosine type period, the second sensing electrode pattern is a half fulcrum of the first bending part and the second bending part. It is more preferable to cross the music points. Such an arrangement structure maximizes the intersection area Q2 and improves touch sensing efficiency, and also has the effect of improving the visibility by forming the optical characteristics more transparent than the arrangement of the conventional orthogonal structure. .

図6〜図8に示された構造においても、第1及び第2の接着絶縁層はOCAフィルムでもよく、第1及び第2の感知電極パターン層はベース基材上にITO(Indium Tin Oxide)、IZO(Indium Zinc Oxide)、ZnO(Zinc Oxide)、炭素ナノチューブ(CNT:carbon nano tube)、銀ナノワイヤ、伝導性ポリマー、又はグラフェンのうちから選ばれるいずれか一つで形成されるように電極パターンが形成されてもよい。   6 to 8, the first and second adhesive insulating layers may be OCA films, and the first and second sensing electrode pattern layers may be ITO (Indium Tin Oxide) on the base substrate. , IZO (Indium Zinc Oxide), ZnO (Zinc Oxide), carbon nanotube (CNT: carbon nano tube), silver nanowire, conductive polymer, or an electrode pattern formed of graphene May be formed.

または、上述の構造とは異なり、第2及び第1の感知電極パターン112、132をそれぞれ連結する配線部111、131を形成し、上述の透明電極材料を用いるのではなく、Ag、Al、Cu等の導電性材料を用いて配線部と感知電極パターンとを同時に形成する工程を利用してもよい。これはITOを用いて電極をパターン形成すると、パターンの形状が見えるようになり、ITOが高価なために製造コストが上昇してしまうことはもちろん、ITOの膜硬度低下により、単一ベース基板に両面ITO層を有する構造を具現化することが難しいという製造上の問題を解消して、ITOの代わりに、光学基材に導電性材料を形成、パターニングして有効領域と配線部とを同時に形成する工程を通じて製造コストを削減し、膜硬度の低下に拘らずに様々なデザインの自由度を実現することができる工程を提供するという効果も得られる。   Alternatively, unlike the above-described structure, the wiring portions 111 and 131 that connect the second and first sensing electrode patterns 112 and 132 are formed, and instead of using the above-described transparent electrode material, Ag, Al, Cu A process of simultaneously forming the wiring portion and the sensing electrode pattern using a conductive material such as the above may be used. This is because when ITO is used to pattern an electrode, the shape of the pattern becomes visible, and the manufacturing cost increases due to the high cost of ITO. Eliminates manufacturing problems that make it difficult to implement a structure with double-sided ITO layers, and instead of ITO, forms a conductive material on an optical substrate and patterns it to simultaneously form an effective area and wiring part Thus, the manufacturing cost can be reduced through the process, and an effect of providing a process capable of realizing various degrees of design freedom regardless of the decrease in film hardness can be obtained.

さらには、感知電極のパターン構造を図10に示すようにメッシュ形構造で具現化することも可能である。   Furthermore, the pattern structure of the sensing electrode can be realized as a mesh structure as shown in FIG.

すなわち、図6〜図8に示すタッチウィンドウの構造において感知電極は多数の単位パターンが連結された構造で形成され、各々の感知電極の両端には配線部a1、a2がそれぞれ連結されるダブルルーティング構造を有するようにする。特に、単位パターンはメッシュ構造で形成されることを特徴とする。本実施例において「メッシュ構造」とは、単位パターンの外殻部を形成する外部ラインパターンM1と外部ラインパターンの内部を交差構造で連結する内部ラインパターンM2とを含む構造と定義する。特に、外部ラインパターンM1は多角形構造以外にも円形、楕円形など、様々な形状で具現化することができ、ライン形状の導電材料で形成することが好ましい。   That is, in the structure of the touch window shown in FIGS. 6 to 8, the sensing electrode is formed with a structure in which a number of unit patterns are connected, and double routing in which the wiring portions a1 and a2 are connected to both ends of each sensing electrode. Have a structure. In particular, the unit pattern is formed in a mesh structure. In this embodiment, the “mesh structure” is defined as a structure including an external line pattern M1 that forms an outer shell portion of a unit pattern and an internal line pattern M2 that connects the inside of the external line pattern with a cross structure. In particular, the external line pattern M1 can be embodied in various shapes such as a circle and an ellipse in addition to the polygonal structure, and is preferably formed of a line-shaped conductive material.

また、内部ラインパターンM2は図示したように、外部ラインパターンM1の内部において交差構造で連結するラインの集合で形成することができる。すなわち直線構造の多数のパターンが網構造をなして交差するように形成することができる。もちろん、直線構造だけでなく様々な曲線構造の配置も適用することができる。本発明に係るメッシュ構造の感知電極は3μm〜10μmの導電性材料からなる線を多角形メッシュ形状に形成して電気信号が伝達できるようにする。この場合、メッシュ構造をなす内部ラインパターンM2の交差構造における交差角度の調節と線幅の調節を通じて信号伝達の効率を大幅に向上させることができる。また、配線部と感知電極パターンを同じ材料で同時に製造する工程を用いることにより、工程の効率を向上させることができるだけでなく、ITOを使用しなくても済むので、製造コストを大幅に削減することができる。したがって、材料費や工程費の削減と共に、信号伝達効率をメッシュ構造で向上させて高効率の製品を具現化することができる。本発明に用いられる感知電極及び配線に用いられる導電性材料にはAg、Cu、Al等様々な材料を適用することができる。   Further, as shown in the figure, the internal line pattern M2 can be formed by a set of lines connected in a cross structure inside the external line pattern M1. That is, it can be formed so that a large number of patterns having a linear structure intersect in a net structure. Of course, not only a linear structure but also arrangements of various curved structures can be applied. The sensing electrode having a mesh structure according to the present invention forms a line made of a conductive material of 3 μm to 10 μm in a polygonal mesh shape so that an electric signal can be transmitted. In this case, the efficiency of signal transmission can be greatly improved through the adjustment of the crossing angle and the line width in the crossing structure of the internal line pattern M2 having a mesh structure. In addition, by using the process of simultaneously manufacturing the wiring part and the sensing electrode pattern with the same material, not only can the efficiency of the process be improved, but it is not necessary to use ITO, thereby greatly reducing the manufacturing cost. be able to. Therefore, it is possible to realize a highly efficient product by reducing the material cost and the process cost and improving the signal transmission efficiency with the mesh structure. Various materials such as Ag, Cu, and Al can be applied to the conductive material used for the sensing electrode and the wiring used in the present invention.

すなわち、その一例として図6の構図を例に挙げると、透明電極材料を用いて電極を形成するのではなく、第2及び第1の感知電極パターン112、113をそれぞれ連結する配線部111、131をAg、Al、Cu等の導電性材料を用いて配線部と感知電極パターンとを同時に形成する工程を利用することもできる。これはITOを用いて電極のパターン形成すると、パターンの形状が見えるようになり、ITOが高価な材料で製造コストが上昇してしまうことはもちろん、ITOの膜硬度低下により単一のベース基板に両面ITO層を有する構造を具現化することが難しいという製造上の問題を解消して、ITOの代わりに、光学基材に導電性材料を形成、パターニングして有効領域と配線部を同時に形成する工程を通じて製造単価を抑え、膜硬度低下に関係なく様々なデザインの自由度を具現化できる工程を提供する効果もある。もちろん、この場合、本発明に係るダミー回路パターンも同じ材料を用いて具現化することも可能である。   That is, taking the composition of FIG. 6 as an example, the wiring portions 111 and 131 that connect the second and first sensing electrode patterns 112 and 113, respectively, instead of forming electrodes using a transparent electrode material. It is also possible to use a process of simultaneously forming the wiring portion and the sensing electrode pattern using a conductive material such as Ag, Al, or Cu. This is because when the electrode pattern is formed using ITO, the shape of the pattern becomes visible, and the manufacturing cost increases due to the expensive material of ITO. Eliminate the manufacturing problem that it is difficult to realize a structure having a double-sided ITO layer, and form a conductive material on an optical substrate instead of ITO, and pattern it to form an effective area and a wiring part simultaneously. There is also an effect of providing a process in which the manufacturing unit price can be suppressed through the process and various design degrees of freedom can be realized regardless of the decrease in film hardness. Of course, in this case, the dummy circuit pattern according to the present invention can also be realized using the same material.

さらに、付加的な特徴として、図9に示すように、様々な感知電極パターン層を構成する単位感知電極パターンRx1、Rx2の各々の両端には各々の配線部が連結される。すなわち、Rx1の両端にはa1、a2の単位配線部が連結され、Rx2にはb1、b2の単位配線部が連結される構造である。すなわち、これにより、単位感知電極の両端にそれぞれ連結される単位配線部を有する構造を備えてセンシング領域の両側に配線を備えることで、センシングのための電荷の充填時間を短縮してセンシング機能を向上させることができる。   Furthermore, as an additional feature, as shown in FIG. 9, respective wiring portions are connected to both ends of each of the unit sensing electrode patterns Rx1 and Rx2 constituting various sensing electrode pattern layers. That is, the unit wiring parts a1 and a2 are connected to both ends of Rx1, and the unit wiring parts b1 and b2 are connected to Rx2. That is, by providing a structure having unit wiring portions connected to both ends of the unit sensing electrode and providing wiring on both sides of the sensing region, the charging time for sensing is shortened and the sensing function is achieved. Can be improved.

上述のような本発明の詳細な説明では具体的な実施例について説明した。しかし、本発明の範囲から逸脱しない範囲内では種々の変形が可能である。本発明の技術的思想は本発明で記述した実施例に限定して定められるものではなく、特許請求の範囲だけでなくこの特許請求の範囲と均等なものによって定められなければならない。   In the foregoing detailed description of the invention, specific embodiments have been described. However, various modifications can be made without departing from the scope of the present invention. The technical idea of the present invention is not limited to the embodiments described in the present invention, but must be determined not only by the claims but also by the equivalents of the claims.

a1、a2、a3 配線部
D1、D2、D3 ダミー回路パターン
P 連結パッド
100、200、300 透明ウィンドウ
110、130、230、310 ベース基板
112、132、212、312 感知電極
120、140、220,320 接着材料層
a1, a2, a3 Wiring part D1, D2, D3 Dummy circuit pattern P Connection pad 100, 200, 300 Transparent window 110, 130, 230, 310 Base substrate 112, 132, 212, 312 Sensing electrode 120, 140, 220, 320 Adhesive material layer

Claims (15)

透明ウィンドウ上に形成されるパターン化された感知電極を含む感知電極パターン層と、
前記感知電極と連結される配線部と、を含み、
前記配線部と離隔するダミー回路パターンを更に含むことを特徴とするタッチウィンドウ。
A sensing electrode pattern layer comprising a patterned sensing electrode formed on a transparent window;
A wiring part connected to the sensing electrode,
The touch window further comprising a dummy circuit pattern spaced apart from the wiring part.
前記ダミー回路パターンは、前記配線部の最外殻配線部に隣接して少なくとも2つ以上配置される、請求項1に記載のタッチウィンドウ。   The touch window according to claim 1, wherein at least two dummy circuit patterns are disposed adjacent to an outermost shell wiring portion of the wiring portion. 前記ダミー回路パターンは、
前記配線部の最外殻配線部に配置される第1のダミー回路パターンと、
前記配線部の内側配線部間に配置される少なくとも1つ以上の第2のダミー回路パターンと、
を更に含む、請求項2に記載のタッチウィンドウ。
The dummy circuit pattern is
A first dummy circuit pattern disposed in an outermost wiring portion of the wiring portion;
At least one second dummy circuit pattern disposed between the inner wiring portions of the wiring portion;
The touch window according to claim 2, further comprising:
前記第2のダミー回路パターンは、前記配線部の折曲部内側に配置される、請求項3に記載のタッチウィンドウ。   The touch window according to claim 3, wherein the second dummy circuit pattern is disposed inside a bent portion of the wiring portion. 前記感知電極及び前記配線部は同じ材料で形成される、請求項1に記載のタッチウィンドウ。   The touch window according to claim 1, wherein the sensing electrode and the wiring part are formed of the same material. 前記感知電極及び前記配線部は導電性材料で形成される、請求項3に記載のタッチウィンドウ。   The touch window according to claim 3, wherein the sensing electrode and the wiring part are formed of a conductive material. 前記ダミー回路パターンは前記配線部と同一材料で形成される、請求項1に記載のタッチウィンドウ。   The touch window according to claim 1, wherein the dummy circuit pattern is formed of the same material as the wiring part. 前記感知電極パターン層は、
透明ウィンドウの一方の面上に接着材料層を介して接着されるベース基板と、
前記ベース基板の一方の面及び前記一方の面に対向する他方の面にパターン化される第1の感知電極パターン及び第2の感知電極パターンと、
を含む、請求項1に記載のタッチウィンドウ。
The sensing electrode pattern layer includes:
A base substrate bonded via an adhesive material layer on one side of the transparent window;
A first sensing electrode pattern and a second sensing electrode pattern patterned on one surface of the base substrate and the other surface opposite to the one surface;
The touch window according to claim 1, comprising:
前記感知電極パターン層は、
前記透明ウィンドウに第1の接着材料層を介して接着され、一方の面に感知電極パターンが形成される第1の感知電極パターン層と、
前記第1の感知電極パターン層の他方の面に第2の接着材料層を介して接着され、一方の面に感知電極パターンが形成される第2の感知電極パターン層と、
を含む、請求項1に記載のタッチウィンドウ。
The sensing electrode pattern layer includes:
A first sensing electrode pattern layer bonded to the transparent window via a first adhesive material layer and having a sensing electrode pattern formed on one surface;
A second sensing electrode pattern layer that is adhered to the other surface of the first sensing electrode pattern layer via a second adhesive material layer, and a sensing electrode pattern is formed on one surface;
The touch window according to claim 1, comprising:
前記感知電極パターン層は、
前記透明ウィンドウ上に直接形成され、
互いに絶縁されるようにパターニングされる第1の感知電極パターン及び第2の感知電極パターンを含む、請求項1記載のタッチウィンドウ。
The sensing electrode pattern layer includes:
Formed directly on the transparent window;
The touch window of claim 1, comprising a first sensing electrode pattern and a second sensing electrode pattern that are patterned to be insulated from each other.
タッチセンサモジュールは、
前記透明ウィンドウの一方の面上に接着材料層を介して接着されるベース基板と、
前記ベース基板のいずれか一方の面に直接形成され、互いに絶縁されるようにパターニングされる第1及び第2の感知電極パターンと、
を含む、請求項1に記載のタッチウィンドウ。
Touch sensor module
A base substrate adhered to one side of the transparent window via an adhesive material layer;
First and second sensing electrode patterns formed directly on one surface of the base substrate and patterned to be insulated from each other;
The touch window according to claim 1, comprising:
前記感知電極は、ITO、IZO、ZnO、炭素ナノチューブ、銀ナノワイヤ、伝導性ポリマー、又はグラフェンのうちから選ばれるいずれか一つで形成される、請求項1に記載のタッチウィンドウ。   The touch window of claim 1, wherein the sensing electrode is formed of any one selected from ITO, IZO, ZnO, carbon nanotube, silver nanowire, conductive polymer, or graphene. 第1の感知電極パターン層又は第2の感知電極パターン層は、
各々の単位感知電極がメッシュ構造で形成され、
前記メッシュ構造は、
単位パターンの外角部を形成する外部ラインパターンと、
前記外部ラインパターンの内部を交差構造で連結する内部ラインパターンと、
を含んで形成される、請求項12に記載のタッチウィンドウ。
The first sensing electrode pattern layer or the second sensing electrode pattern layer is
Each unit sensing electrode is formed in a mesh structure,
The mesh structure is
An external line pattern that forms the outer corner of the unit pattern; and
An internal line pattern for connecting the inside of the external line pattern with a cross structure; and
The touch window according to claim 12, wherein the touch window is formed.
前記第1の感知電極パターン層又は第2の感知電極パターン層は、
それぞれ一部が互いにオーバーラップされるように配置され、
前記第1の感知電極パターン又は前記第2の感知電極パターンのうちいずれか一方は周期性を有する屈曲パターンを備える、請求項13に記載のタッチウィンドウ。
The first sensing electrode pattern layer or the second sensing electrode pattern layer includes:
Each part is arranged to overlap each other,
The touch window according to claim 13, wherein one of the first sensing electrode pattern and the second sensing electrode pattern includes a bent pattern having periodicity.
前記周期性を有する屈曲パターンは、
第n屈曲部と第n+1屈曲部との間に線形感知電極パターンが配置される、請求項13に記載のタッチウィンドウ。
The bending pattern having the periodicity is
The touch window of claim 13, wherein a linear sensing electrode pattern is disposed between the nth bent portion and the (n + 1) th bent portion.
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